Assisted-braking resistor for increasing rope friction when there is a large weight difference between the belayer and lead climber. In the event of a fall, the OHM increases the amount of rope friction so that a lighter belayer can hold a heavier lead climber without difficulty. Features Belayer requires significantly less hand braking force to arrest a fall Lowering a heavier climber is much easier to control OHM is attached at the first bolt in the safety chain Should a lead climber fall at the first bolt, the OHM significantly reduces the risk of a possible ground fall Rope handling when belaying a lead climber not affected (no additional friction when paying out rope) Recommended weight difference (lead climber > belayer): 10–40 kg Minimum belayer weight: 40 kg For single ropes from 8.9–11.0 mm Specs Approved rope diameter: 8,9 - 11 mm Manual
